{"id":34717996,"url":"https://github.com/qoco-org/qoco","last_synced_at":"2026-04-02T00:01:34.930Z","repository":{"id":271947155,"uuid":"787723757","full_name":"qoco-org/qoco","owner":"qoco-org","description":"Quadratic Objective Conic 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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["conic-programming","convex-optimization","interior-point-method","linear-programming","optimization","quadratic-programming"],"created_at":"2025-12-25T01:19:48.957Z","updated_at":"2026-04-02T00:01:34.919Z","avatar_url":"https://github.com/qoco-org.png","language":"C","readme":"# Quadratic Objective Conic Optimizer (QOCO)\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"https://github.com/user-attachments/assets/7bd44fa7-d198-4739-bb79-a5c15e04a8de\" alt=\"drawing\" width=\"500\"/\u003e\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003ca href=https://github.com/qoco-org/qoco/actions/workflows/unit_tests.yml/badge.svg\"\u003e\u003cimg src=\"https://github.com/qoco-org/qoco/actions/workflows/unit_tests.yml/badge.svg\"/\u003e\u003c/a\u003e\n  \u003ca href=\"https://img.shields.io/pypi/dm/qoco.svg?label=Pypi%20downloads\"\u003e\u003cimg src=\"https://img.shields.io/pypi/dm/qoco.svg?label=Pypi%20downloads\" alt=\"PyPI Downloads\" /\u003e\u003c/a\u003e\n  \u003ca href=\"https://arxiv.org/abs/2503.12658\"\u003e\u003cimg src=\"http://img.shields.io/badge/arXiv-2503.12658-B31B1B.svg\"/\u003e\u003c/a\u003e\n  \u003ca href=\"https://qoco-org.github.io/qoco/\"\u003e\u003cimg src=\"https://img.shields.io/badge/docs-online-brightgreen?logo=read-the-docs\u0026style=flat\" alt=\"Documentation\" /\u003e\u003c/a\u003e\n  \u003ca href=\"https://opensource.org/licenses/BSD-3-Clause\"\u003e\u003cimg src=\"https://img.shields.io/badge/License-BSD_3--Clause-green.svg\" alt=\"License\" /\u003e\u003c/a\u003e\n\u003c/p\u003e\n\n\nQOCO is a C implementation of a primal-dual interior point method to solve second-order cone programs with quadratic objectives of the following form\n\n$$\n  \\begin{split}\n      \\underset{x}{\\text{minimize}}\n      \\quad \u0026 \\frac{1}{2}x^\\top P x + c^\\top x \\\\\n      \\text{subject to}\n      \\quad \u0026 Gx \\preceq_\\mathcal{C} h \\\\\n      \\quad \u0026 Ax = b\n  \\end{split}\n$$\n\nwith optimization variable $x \\in \\mathbb{R}^n$ and problem data $P = P^\\top \\succeq 0$, $c \\in \\mathbb{R}^n$, $G \\in \\mathbb{R}^{m \\times n}$, $h \\in \\mathbb{R}^m$, $A \\in \\mathbb{R}^{p \\times n}$, $b \\in \\mathbb{R}^p$, and $\\preceq_\\mathcal{C}$\nis an inequality with respect to cone $\\mathcal{C}$, i.e. $h - Gx \\in \\mathcal{C}$. Cone $\\mathcal{C}$ is the Cartesian product of the non-negative orthant and second-order cones, which can be expressed as\n\n$$\\mathcal{C} =  \\mathbb{R}^l_+ \\times \\mathcal{Q}^{q_1}_1 \\times \\ldots \\times \\mathcal{Q}^{q_N}_N$$\n\nwhere $l$ is the dimension of the non-negative orthant, and $\\mathcal{Q}^{q_i}_i$ is the $i^{th}$ second-order cone with dimension $q_i$ defined by\n\n$$\\mathcal{Q}^{q_i}_i = \\\\{(t,x)  \\in \\mathbb{R} \\times \\mathbb{R}^{q_i - 1} \\\\; | \\\\; norm(x) \\leq t \\\\}$$\n\n## Bug reports\n\nFile any issues or bug reports using the [issue tracker](https://github.com/qoco-org/qoco/issues).\n\n## Citing\n```\n@article{chari2026qoco,\n  title = {QOCO: a quadratic objective conic optimizer with custom solver generation},\n  author = {Chari, Govind M. and A\\c{c}ıkmeşe, Beh\\c{c}et},\n  journal = {Mathematical Programming Computation},\n  issn = {1867-2957},\n  url = {http://dx.doi.org/10.1007/s12532-026-00311-8},\n  doi = {10.1007/s12532-026-00311-8},\n  publisher = {Springer Science and Business Media LLC},\n  year = {2026},\n  month = mar,\n}\n```\n\n## License\nQOCO is licensed under the BSD-3-Clause license.\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fqoco-org%2Fqoco","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fqoco-org%2Fqoco","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fqoco-org%2Fqoco/lists"}